Pulse Clean Systems on Dust Collectors

May 4, 2017

Troubleshooting your Dust Collector's Pulse Clean SystemA functioning and efficient pulse clean system will extend filter life and minimize operating costs. Make sure your pulse cleaning system is effective without wasting compressed air.

Troubleshooting tips for your dust collector’s pulse clean system

  • Check the pressure in the air manifold – should be 85-100 psi – clean, dry air, with sufficient volume to maintain pressure

  • Check that there is power to the timer control – power light will glow when there is power to the control


  • Each solenoid has a terminal connected to the output channel on the timer board, and a terminal connected to the solenoid common terminal.
  • If a pressure switch is connected to the timer board, confirm it is calling for cleaning. If no pressure switch is used, the p.s. terminals are jumpered together on the timer board.

  • Timer board is not sequencing, check fuse

  • When the timer board is sequencing, an indicator light for each output channel will glow momentarily, as the channel is energized.


  • Diaphragm Valves are normally closed. They open for a split second to allow a burst of compressed air to pulse the filter.
  • If a diaphragm valve is stuck open, check for leaks in the plastic tubing and fittings.

  • Hold a finger over the small bleed port at the end of the electrical solenoid, if air is leaking from this port, the solenoid needs rebuild / replaced

  • If no leaks from solenoid valve and tubing, depressurize the manifold and clean/replace the diaphragm and spring in the pulse valve.

  • If diaphragm valve will not open, confirm there is no kinks in the tubing and check that the electrical solenoid is operating

AM Industrial stocks electrical solenoids and diaphragm valve repair kits for immediate shipment. Ask for a quote on AirMax cartridge or bag filters.

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